基于虚拟温度法的间歇过程换热器网络综合

被引:5
作者
刘琳琳 [1 ]
都健 [1 ]
肖丰 [1 ]
陈理 [2 ]
姚平经 [1 ]
机构
[1] 大连理工大学化工系统工程研究所
[2] 大连大学环境与化学工程学院
关键词
间歇过程; 换热器网络; 虚拟温度法;
D O I
10.16866/j.com.app.chem2009.08.013
中图分类号
TQ051.5 [加热、冷却机械];
学科分类号
080706 ;
摘要
提出了基于时间段模型(TSM)综合间歇过程换热器网络的方法,用虚拟温度法代替传统的单一最小传热温差,将各流股的温差贡献值作为决策变量,年度总费用最小作为目标函数建立数学模型。应用遗传膜拟退火算法对上述数学模型进行求解,分别获得每个时间间隔内的子换热器网络结构,并进一步对总换热器网络做结构优化,使其既满足流股的换热要求,又满足年费用最小。方法应用于实例计算,结果比基于最小传热温差获得的换热器网络年度总费用节省6.0%,换热器减少5台,说明这种方法既节省费用,又简化了网络结构。
引用
收藏
页码:1017 / 1021
页数:5
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